I guess the PST2051 is far too small for that antenna.
I own 4 of those rotators for 15 years and it never happened that all 4 were
workable, at least one is always damaged.
At the beginning I used to turn a 5-element KLM 20 yagi.
Just by turning and stopping the bearing of the worm shaft was completely
pushed out its housing.
I swapped the rotator with another one and it took just one month when it
happened again.
Then I gave up and used it only on smaller antennas.
The rotator failed with the HyGain Discoverer shorty-forty.
Another problem is the controller but you are lucky using the Green Heron.
The stop and positioning of the original controller is only dependend on the
pot within the rotator. When that pot fails and the rotator is used in
preset mode, it turns forever and ruins the antenna cables when over turned.
73
Peter
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
William J. Nicosia
Sent: Samstag, 31. Mai 2014 18:23
To: towertalk at contesting.com
Subject: [TowerTalk] ProSisTel 2051d failure.
I am soliciting comments and actual experience with
the PST 2051d.
My unit was installed a year ago to turn a Mosley
Pro67C3, which is a heavy antenna. Its 24' 3 inch boom sports 3 elements
on 40. Its dead weight is about 130 pounds.
Recently, the 2051d became erratic and seemed to
have turned through the South stop point. BTW I'm controlling the 2051d
with a Green Heron RT-21. Anyway the rotor became less and less
responsive until it no longer turned at all and just parked itself
approximately at North. It does not windmill so the worm gear must be
holding it in place. But it does not turn either and the RT-21 indicates
an out of calibration condition. BTW the RT-21 will not turn the rotor
in DEBUG either.
Anybody have this experience with a PST and did it
turn out to be a mechanical failure or something electrical?
73,
Bill, W2ZKX
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